Currently, with a selector in vertical mode users have the choice to change the "selection mode" from Include to Exclude :
However, for a selector in pop-up the Exclude option isn't available :
Unlike in the screen selector :
It would be nice to have the Exclude option added to Selector in pop-up mode as in screen selector.
Screen selector is often disable for some users or simply not as practical and as user friendly as using of a well positioned selector so it isn't a reliable workaround at the moment. And having selector in vertical display due to the lack of space available on the screen isn't viable workaround in most cases.
The use case are simple, users are exploring data, out of hundreds of customers sees one or two that he wants to exlude it because it's intercompany or an outlier for instance. It's easier to click once or twice on the code he had seen and then click exclude than doing some shift+click & scrolling action avoiding the code
